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Journal of Applied Oral Science: Revista FOB

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https://www.readbyqxmd.com/read/28076466/ozone-therapy-as-an-adjuvant-for-endondontic-protocols-microbiological-ex-vivo-study-and-citotoxicity-analyses
#1
Carlos Goes Nogales, Marina Beloti Ferreira, Antonio Fernando Montemor, Maria Filomena de Andrade Rodrigues, José Luiz Lage-Marques, João Humberto Antoniazzi
Objectives: This study evaluated the antimicrobial efficacy of ozone therapy in teeth contaminated with Pseudomonas aeruginosa, Enterococcus faecalis, and Staphylococcus aureus using a mono-species biofilm model. Parallel to this, the study aimed to evaluate the cytotoxicity of ozone for human gingival fibroblasts. Material and Methods: One hundred and eighty single-root teeth were contaminated with a mono-species biofilm of Enterococcus faecalis, Pseudomonas aeruginosa, and Staphylococcus aureus...
November 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28076465/the-effect-of-capsaicin-on-expression-patterns-of-cgrp-in-trigeminal-ganglion-and-trigeminal-nucleus-caudalis-following-experimental-tooth-movement-in-rats
#2
Zhou Yang, Long Hu, Y E Niansong, Liao Lina, Yang Xin, Jian Fan, Wang Yan, Lai Wenli
Objectives: The aim of this study was to explore the effect of capsaicin on expression patterns of calcitonin gene-related peptide (CGRP) in the trigeminal ganglion (TG) and trigeminal subnucleus caudalis (Vc) following experimental tooth movement. Material and Methods: Male Sprague-Dawley rats were used in this study and divided into small-dose capsaicin+force group, large-dose capsaicin+force group, saline+force group, and no force group. Closed coil springs were used to mimic orthodontic forces in all groups except for the no force group, in which springs were inactivated...
November 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28076464/silver-nanoparticle-incorporation-effect-on-mechanical-and-thermal-properties-of-denture-base-acrylic-resins
#3
Ayşegül Köroğlu, Onur Şahin, Işın Kürkçüoğlu, Doğu Ömür Dede, Tonguç Özdemir, Baki Hazer
Objective: The aim of the present study was to evaluate the mechanical and thermal characteristics of two denture base acrylic resins containing silver nanoparticles (AgNPs). Material and Methods: Two different acrylic denture base resins (heat-polymerized and microwave polymerized) containing 0.3, 0.8 and 1.6 wt% AgNPs were evaluated for flexural strength, elastic modulus and impact strength. The glass transition temperature (Tg) and relative heat capacity (Cp) of the samples were determined from the Differential Scanning Calorimetry (DSC) results...
November 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28076463/in-vitro-effects-of-melaleuca-alternifolia-essential-oil-on-growth-and-production-of-volatile-sulphur-compounds-by-oral-bacteria
#4
Talita Signoreti Graziano, Caroline Morini Calil, Adilson Sartoratto, Gilson César Nobre Franco, Francisco Carlos Groppo, Karina Cogo-Müller
Objective: Halitosis can be caused by microorganisms that produce volatile sulphur compounds (VSCs), which colonize the surface of the tongue and subgingival sites. Studies have reported that the use of natural products can reduce the bacterial load and, consequently, the development of halitosis. The aim of this study was to evaluate the antimicrobial activity of the essential oil of Melaleuca alternifolia on the growth and volatile sulphur compound (VSC) production of oral bacteria compared with chlorhexidine...
November 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28076462/effect-of-ultrasonic-streaming-on-intra-dentinal-disinfection-and-penetration-of-calcium-hydroxide-paste-in-endodontic-treatment
#5
Marcela Paola Castro Arias, Amanda Garcia Alves Maliza, Raquel Zanin Midena, Márcia Sirlene Zardin Graeff, Marco Antonio Húngaro Duarte, Flaviana Bombarda de Andrade
Objective: The antimicrobial effect of ultrasonic agitation of calcium hydroxide (CH) pastes in infected bovine dentin and their penetrability were evaluated using confocal laser scanning microscopy (CLSM) and microbiological culture. Material and Methods: Fifty-two bovine teeth were infected with Enterococcus faecalis using a new contamination protocol; then they received CH paste and were divided into groups with or without ultrasound. Ultrasonic agitation was conducted for 1 min with a plain point insert...
November 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28076461/an-in-vitro-evaluation-of-various-irrigation-techniques-for-the-removal-of-double-antibiotic-paste-from-root-canal-surfaces
#6
Hakan Gokturk, Ismail Ozkocak, Fevzi Buyukgebiz, Osman Demir
Objective: The aim of this study was to investigate the effectiveness of conventional syringe irrigations, passive ultrasonic irrigation (PUI), Vibringe, CanalBrush, XP-endo Finisher, and laser-activated irrigation (LAI) systems in removing double antibiotic paste (DAP) from root canals. Material and Methods: One hundred five extracted single-rooted teeth were instrumented. The roots were split longitudinally. Three standard grooves were created and covered with DAP...
November 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28076460/the-accuracy-of-fine-needle-aspiration-cytology-for-diagnosis-of-parotid-gland-masses-a-clinicopathological-study-of-114-patients
#7
Jens Kristjan Gudmundsson, Aida Ajan, Jahan Abtahi
Objective: Fine-needle aspiration cytology is a valuable method for preoperative assessment of head and neck tumors. However, its accuracy in detection of salivary gland masses is controversial compared with other methods. The aim of this work was to evaluate the effectiveness and accuracy of fine-needle aspiration cytology (FNAC) in the diagnosis of parotid gland masses. Material and Methods: Over a 10-year period, 126 parotid gland masses were resected. Retrospective chart reviews of 114 patients were performed...
November 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28076459/evaluation-of-phenyl-propanedione-on-yellowing-and-chemical-mechanical-properties-of-experimental-dental-resin-based-materials
#8
Dayane Carvalho Ramos Salles de Oliveira, Eduardo José Souza-Junior, Adam Dobson, Ana Rosa Costa Correr, William Cunha Brandt, Mário Alexandre Coelho Sinhoreti
Objective: To evaluate the influence of phenyl-propanedione on yellowing and chemical-mechanical properties of experimental resin-based materials photoactivated using different light curing units (LCUs). Material and Methods: Experimental resin-based materials with the same organic matrix (60:40 wt% BisGMA:TEGDMA) were mechanically blended using a centrifugal mixing device. To this blend, different photoinitiator systems were added in equimolar concentrations with aliphatic amine doubled by wt%: 0...
November 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28076458/risk-of-developing-palatally-displaced-canines-in-patients-with-early-detectable-dental-anomalies-a-retrospective-cohort-study
#9
Daniela Gamba Garib, Melissa Lancia, Renata Mayumi Kato, Thais Marchini Oliveira, Lucimara Teixeira das Neves
Objective: To estimate the risk of PDC occurrence in children with dental anomalies identified early during mixed dentition. Material and Methods: The sample comprised 730 longitudinal orthodontic records from children (448 females and 282 males) with an initial mean age of 8.3 years (SD=1.36). The dental anomaly group (DA) included 263 records of patients with at least one dental anomaly identified in the initial or middle mixed dentition. The non-dental anomaly group (NDA) was composed of 467 records of patients with no dental anomalies...
November 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28076457/removal-of-calcium-hydroxide-from-weine-type-ii-systems-using-photon-induced-photoacoustic-streaming-passive-ultrasonic-and-needle-irrigation-a-microcomputed-tomography-study
#10
Adam Lloyd, Geraldine Navarrete, Melissa Andreia Marchesan, David Clement
Objective: This study compared the effectiveness of Er:YAG laser-activated irrigation (PIPS), passive ultrasonic irrigation (PUI) with EndoUltra and standard needle irrigation (SNI) in the removal of calcium hydroxide [Ca(OH)2] from the mesial roots of Weine Type II mandibular molars. Material and Methods: Thirty mandibular molars were screened by µCT for the presence of mesial roots with complex intra-canal anatomy and a common apical foramen. The teeth were enlarged to a standardized 25/...
November 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812625/prevalence-and-morphometric-analysis-of-three-rooted-mandibular-first-molars-in-a-brazilian-subpopulation
#11
Clarissa Teles Rodrigues, Christiano de Oliveira-Santos, Norberti Bernardineli, Marco Antonio Hungaro Duarte, Clovis Monteiro Bramante, Paloma Gagliardi Minotti-Bonfante, Ronald Ordinola-Zapata
Objectives: To determine the prevalence of three-rooted mandibular molars in a Brazilian population using cone beam computed tomography (CBCT) and to analyze the anatomy of mandibular first molars with three roots through micro-CT. Material and Methods: CBCT images of 116 patients were reviewed to determine the prevalence of three-rooted first mandibular molars in a Brazilian subpopulation. Furthermore, with the use of micro-CT, 55 extracted three-rooted mandibular first molars were scanned and reconstructed to assess root length, distance between canal orifices, apical diameter, Vertucci's classification, presence of apical delta, number of foramina and furcations, lateral and accessory canals...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812624/prevalence-severity-and-risk-indicators-of-gingival-inflammation-in-a-multi-center-study-on-south-american-adults-a-cross-sectional-study
#12
MULTICENTER STUDY
Paola Carvajal, Mariel Gómez, Sabrina Gomes, Ricardo Costa, Andres Toledo, Fernando Solanes, Hugo Romanelli, Rui Oppermann, Cassiano Rösing, Jorge Gamonal
Objectives: The aim of this study is to investigate the prevalence and severity of gingival inflammation and associated risk indicators in South American adults. Material and Methods: Multi-stage samples totaling 1,650 adults from Porto Alegre (Brazil), Tucumán (Argentina), and Santiago (Chile) were assessed. The sampling procedure consisted of a 4-stage process. Examinations were performed in mobile dental units by calibrated examiners. A multivariable logistic regression model was utilized for associating variables as indicators of gingival inflammation (GI) (Gingival Index ≥0...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812623/fragile-x-syndrome-panoramic-radiographic-evaluation-of-dental-anomalies-dental-mineralization-stage-and-mandibular-angle
#13
Aida Sabbagh-Haddad, Denise Sabbagh Haddad, Edgard Michel-Crosato, Emiko Saito Arita
Objective: The purpose of this study was to evaluate the dental radiographic characteristics as described in 40 records of patients with panoramic radiography. Material and Methods: The patients were in the range of 6-17 years old, and were divided into two groups (20 subjects who were compatible with the normality standard and 20 individuals diagnosed with the FXS), which were matched for gender and age. Analysis of the panoramic radiographic examination involved the evaluation of dental mineralization stage, mandibular angle size, and presence of dental anomalies in both deciduous and permanent dentitions...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812622/inflammatory-response-of-human-dental-pulp-to-at-home-and-in-office-tooth-bleaching
#14
Maysa Magalhães Vaz, Lawrence Gonzaga Lopes, Paula Carvalho Cardoso, João Batista de Souza, Aline Carvalho Batista, Nádia Lago Costa, Érica Miranda Torres, Carlos Estrela
Objective: This study evaluated the inflammatory responses of human dental pulp after the use of two bleaching techniques. Material and Methods: Pulp samples were collected from human third molars extracted for orthodontic reasons and divided into three groups: control - no tooth bleaching (CG) (n=7); at-home bleaching with 15% carbamide peroxide (AH) (n = 10), and in-office bleaching with 38% hydrogen peroxide (IO) (n=12). Pulps were removed and stained with hematoxylin-eosin for microscopic analysis of inflammation intensity, collagen degradation, and pulp tissue organization...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812621/the-effect-of-various-kinematics-on-postoperative-pain-after-instrumentation-a-prospective-randomized-clinical-study
#15
RANDOMIZED CONTROLLED TRIAL
Hakan Arslan, Ruslan Khalilov, Ezgi Doğanay, Ertugrul Karatas
Objective: To evaluate various kinematic movements on postoperative pain using a Reciproc system. Material and Methods: Fifty-six molar teeth were divided into four groups according to kinematics as follows: continuous rotation, 360° CCW - 30° CW, 270° CCW - 30° CW, and 150° CCW - 30° CW. Preoperative and postoperative pain levels using visual analogue scale (VAS), percussion pain, and analgesic intake were recorded for each subject. Postoperative pain levels at 1, 3, 5, and 7 d were evaluated...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812620/evaluation-of-the-force-generated-by-gradual-deflection-of-orthodontic-wires-in-conventional-metallic-esthetic-and-self-ligating-brackets
#16
COMPARATIVE STUDY
Manoela Fávaro Francisconi, Guilherme Janson, José Fernando Castanha Henriques, Karina Maria Salvatore de Freitas
Objective: The purpose of this study was to evaluate the deflection forces of Nitinol orthodontic wires placed in different types of brackets: metallic, reinforced polycarbonate with metallic slots, sapphire, passive and active self-ligating, by assessing strength values variation according to gradual increase in wire diameter and deflection and comparing different combinations in the different deflections. Material and Methods: Specimens were set in a clinical simulation model and evaluated in a Universal Testing Machine (INSTRON 3342), using the ISO 15841 protocol...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812619/exopolysaccharide-dispelled-by-calcium-hydroxide-with-volatile-vehicles-related-to-bactericidal-effect-for-root-canal-medication
#17
Lei Lei, Meiying Shao, Yan Yang, Mengying Mao, Yingming Yang, Tao Hu
Objective: Enterococcus faecalis is the dominant microbial species responsible for persistent apical periodontitis with ability to deeply penetrate into the dentin. Exopolysaccharides (EPS) contribute to the pathogenicity and antibiotic resistance of E. faecalis. Our aim was to investigate the antimicrobial activity of calcium hydroxide (CH), camphorated parachlorophenol (CMCP), and chlorhexidine (CHX) against E. faecalis in dentinal tubules. Material and Methods: Decoronated single-canal human teeth and semicylindrical dentin blocks were incubated with E...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812618/interaction-of-dental-pulp-stem-cells-with-biodentine-and-mta-after-exposure-to-different-environments
#18
Anastasia Agrafioti, Vasiliki Taraslia, Vanessa Chrepa, Stefania Lymperi, Panos Panopoulos, Ema Anastasiadou, Evangelos G Kontakiotis
Objective: The aim of the present study was to evaluate and compare the cytotoxic effects of Biodentine and MTA on dental pulp stem cells (DPSCs) and to assess cell viability and adherence after material exposure to an acidic environment. Material and Methods: DPSCs were cultured either alone or in contact with either: Biodentine; MTA set for 1 hour; or MTA set for 24 hours. After 4 and 7 days, cell viability was measured using the MTT assay. Biodentine and MTA were also prepared and packed into standardized bovine dentin disks and divided into three groups according to the storage media (n=6/group): freshly mixed materials without storage medium (Group A); materials stored in saline (Group B); materials stored in citric acid buffered at pH 5...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812617/analysis-of-speech-and-tongue-motion-in-normal-and-post-glossectomy-speaker-using-cine-mri
#19
Jinhee Ha, Iel-Yong Sung, Jang-Ho Son, Maureen Stone, Robert Ord, Yeong-Cheol Cho
Objective: Since the tongue is the oral structure responsible for mastication, pronunciation, and swallowing functions, patients who undergo glossectomy can be affected in various aspects of these functions. The vowel /i/ uses the tongue shape, whereas /u/ uses tongue and lip shapes. The purpose of this study is to investigate the morphological changes of the tongue and the adaptation of pronunciation using cine MRI for speech of patients who undergo glossectomy. Material and Methods: Twenty-three controls (11 males and 12 females) and 13 patients (eight males and five females) volunteered to participate in the experiment...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27812616/occurrence-and-antimicrobial-susceptibility-of-enteric-rods-and-pseudomonads-isolated-from-the-dental-prostheses-biofilm
#20
Sanrrangers Sales Silva, Maximilo de Oliveira Ribeiro, Francisco Isaac Fernandes Gomes, Hellíada Vasconcelos Chaves, Antonio Alfredo Rodrigues E Silva, Iriana Carla Junqueira Zanin, Francisco Cesar Barroso Barbosa
Objective: To determine the occurrence and the in vitro antimicrobial susceptibility of enteric rods and pseudomonads from the denture biofilm of 52 subjects at the Center for Dental Specialties of Sobral/ Ceara, Brazil. Material and Methods: Denture biofilm was collected and samples plated on MacConkey agar. The isolated bacterial colonies were identified using the BBL Crystal enteric/non-fermenter system. Antibiotic bacterial susceptibility was assessed by the disc diffusion method of amoxicillin, amoxicillin/clavulanic acid, doxycycline, tetracycline, tobramycin, imipenem, cefotaxime, and ciprofloxacin...
September 2016: Journal of Applied Oral Science: Revista FOB
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